Only fits Shimano GRX FC-RX810-2 48/31T Crankset 48T Chainring is EXCLUDED. Brand Shimano MPN Y0JR31000 Bolt Center Diameter 80mm Teeth 31t For Bike Type Gravel Bike Type Chain Ring UPC 0192790516387 Part Type Bicycle part ColorBlack MaterialAluminum Chain CompatibilityShimano 11 speed BCD80mm Teeth31T .
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